Key

Pre-requisites

Java 6 (for running Eclipse, you can still use Java 5 for your projects)

Install Eclipse

(If you do not have Eclipse installed, or you want to make isolated tests of the Clojure plugin for Eclipse)

Grab the Eclipse ZIP file from http://www.eclipse.org/downloads . If you do not know which "package" to get, pick the "Eclipse IDE for Java Developers" one since it ships out of the box with Git support

Unzip it somewhere. The executable is eclipse (linux) or eclipse.exe (windows) located in the eclipse/ directory created by the unzip operation

The first time Eclipse is run, it will ask you for a location on your disk where eclipse will put its metadata and will create new projects by default.

Go to menu Window > Reset Perspective ... this will reset the way the views are layout, and also place correctly the views contributed by Counterclockwise (the Namespace Browser view, placed "behind" the code outline view)